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@uiten etes etnt @Hire AMOS C. RODGERS, 0F PHILADELPHIA, FENNSYLVANIA. Letters Patent .Na 65,508, elated Jzme 4, 1867.

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TO ALL WHOM IT WAY CONCERN:

Be it known that I, AMOS C. RODGERS, of Philadelphia, Pennsylvania, have invented an Improved Retain ing Device for WindowSashes, Ste.; and Il do hereby declare the following to be a full, clear, and exact description of the saine. i

My invention consists of a sliding frame or door-having a plate secured to one edge, in combination with a plate or clamp, and with devices fully described hereafter for operating the clamp, so that the lattermay either be brought as irn'ily against the plate on the sliding frame as to secure the latter in any positioznor may be moved back so as not to interfere with the adjustment of the frame.

In order to enable others skilled in the art to make and use my'inveution, I will new proceed to describe its construction and operation, reference being had to the accompanying drawing, which forms a part of this specil'ication, and in which I Figure I is a transverse section offsufcient of a window-frame and sash to show my improvement; and

Figures 2 'and 3, elevations partly in section.

A is one of the side-pieees of a windowframe, and B is a part of a sash, which slides between guiding strips 7c Z at one side of' the side-piece. The edge of the sash B is so cut away as to leave a rib, a, at one side, and to the opposite side of the sash is secured a metal plate, b, which is serrated at the inner side, as shown i in the drawing. At one side of a recess, X, in the side-piece A, is secured a plate, C, at the inner cud ofwhieh is a projection, e, and through this plate, and through an opening in the side-piece A, passes a screw, D, to thc outer end of which Ois secured a knob, d, the latter turning freely in a plate, e, secured to the outer face of' the side-piece A. Within the recess X fits loosely a plate, F, one end of which projects into the space between the rib a and the plate Z of the 'frame B, and at the side of this plate F, opposite the plate Z1, are projections or teeth, 2', adapted to the serrations of the plate b. At the inner end 0i' the plate F is a recess into which extends the projection c on the plate C, the screw I) passing through an opening in the plate F, in which are cut threads corresponding to those on the screw. When the parts are in the position shown in g. 1, the sash may be freely raised and lowered. When, however, it is desired to secure the sash in any position, it is tirst properly adjusted, and the screw D is then so turned as to bring the plate F against thc plate I), the teeth z' engaging with the serrations of the latter plate, which is iirmly clamped between the plate F and the adjacent guiding strip 1A, so that the sash-is not only secured immovable in its proper vertical position, but is also prevented from moving laterally and rattling. When the position of the sash is to be changed, the screw D is turned so as to move back the plate F to its first position, the projection c serving to guide the plate as it is moved back and forth in the opening. l

The frame, when very heavy, may he secured at. both edges by devices similar to that described. The device may also be used in connection with small sliding doors or shutters.

I claim as my invention, and desire to secure by Letters Patent-- A sliding frame or door, B, with its plate b at the edge, in combination with a plate, F, and with a screw, D, whereby the plate F may be brought firmly against or removed from contact with the plate Z1, the whole being constructed and operating substantially as and for the purpose described.

In testimony whereoi1 I have signed my name to this specification in the presence of two subscribing Witnesses.

AMOS C. RODGERS.

Witnesses:

JOHN WHITE, W. J. R. DELANY. 

